British Airways Flight Number BA 196 - Registration G-VIIJ - 12 November Departure from Houston Texas to London LHR declared an Emergency over Wales yesterday. ‘According to reports, crew sounded like they had oxygen masks on while talking to ATC’. - AirLive.net. Reported by the Daily Express at 12.41 and updated at 17.43. The airline have said it was a ‘technical issue’. Further information to follow - if and when it’s released.